On Thu, Aug 21, 2014 at 04:37:29PM +0800, zhanghailiang wrote: > If we start Windows 2008 R2 DataCenter with number of cpu less than 8, > The system will use APIC Flat Logical destination mode as default > configuration, > Which has an upper limit of 8 CPUs. > > The fault is that VM can not show all processors within Task Manager if > we hot-add cpus when the number of cpus in VM extends the limit of 8. > > If we use cluster destination model, the problem will be solved. > > Signed-off-by: huangzhichao <huangzhic...@huawei.com> > Signed-off-by: zhanghailiang <zhang.zhanghaili...@huawei.com>
What if maxcpus is low? No reason to force cluster model then, right? > --- > hw/i386/acpi-build.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c > index 10b84d0..fed4501 100644 > --- a/hw/i386/acpi-build.c > +++ b/hw/i386/acpi-build.c > @@ -545,7 +545,8 @@ static void fadt_setup(AcpiFadtDescriptorRev1 *fadt, > AcpiPmInfo *pm) > (1 << ACPI_FADT_F_PROC_C1) | > (1 << ACPI_FADT_F_SLP_BUTTON) | > (1 << ACPI_FADT_F_RTC_S4)); > - fadt->flags |= cpu_to_le32(1 << ACPI_FADT_F_USE_PLATFORM_CLOCK); > + fadt->flags |= cpu_to_le32(1 << ACPI_FADT_F_USE_PLATFORM_CLOCK | > + 1 << ACPI_FADT_F_FORCE_APIC_CLUSTER_MODEL); > } > > > -- > 1.7.12.4 >
